/* 样式表 */
body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f1f1f1;
}

/* 登录表单容器 */
.login-container {
    background-color: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.2);
    max-width: 500px;
    margin: 50px auto;
}

/* 登录表单标题 */
h1 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 30px;
}

/* 输入框 */
input[type=text], input[type=password] {
    width: 100%;
    padding: 12px 20px;
    margin: 8px 0;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}
#captcha{
    width: 30%;
}

#captcha ~ img{
    vertical-align: top;
}

/* 登录按钮 */
button[type=submit] {
    background-color: #4CAF50;
    color: white;
    padding: 4px 20px;
    margin: 8px 0;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    width: 100%;
    font-size: 20px;
}

/* 注册链接 */
.register {
    text-align: center;
}

.register a {
    color: #2196F3;
}

/* 错误信息 */
.error {
    color: #ff0000;
    text-align: center;
}
.success {
    color: #00ff15;
    text-align: center;
}